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Installation & Mounting:
Before installation, examine the LED heads for transit damage.
Do not use damaged or broken parts.
Important! This unit is a safety device, and it must be con-
nected to its own separate, fused power point to assure its
continued operation should any other electrical accessory fail.
Mounting:
The 3730 LED heads are surface mounted by screwing through
the two front-mounting bosses. The LED heads can be stacked
vertically or horizontally to provide higher intensity where re-
quired.
1.
The 3730 series LED heads should be mounted to a flat
surface or one with the least amount of curvature. The
mounting location should allow the maximum visibility of
the warning device to other road users, while allowing for
sufficient wire access.
Caution:
When drilling into any vehicle surface, make
sure the area is free from any electrical wires, fuel lines,
vehicle upholstery, etc. that could be damaged
2.
Using the supplied mounting gasket as a template, mark
the drill hole locations on the mounting surface. Details of
the hole locations are also given in Figure 1.
Figure 1 - Rear of LED head. Dimensions are in inches [mm].
3.
Drill mounting holes using a #31[0.120"] drill bit.
4.
Drill a 25/64"[10mm] hole for the wires protruding from the
rear of the unit at the location in Figure 1. Remove any
sharp edges from this hole.
5.
Mount the LED Head along with the mounting gasket, rout-
ing the wires through the 10mm hole and use additional
grommets or cable protection as necessary to protect the
wiring from any sharp edges. Secure the LED head to the
surface using the #6 self-tapping screws as supplied.
Wiring Instructions
The 3730 LED heads are self-flashing units. A 3A fuse must be
used for each set of up to and including 4 LED heads
Wire functions are as follows:
Ground. Connect to either the battery negative
Green Wire:
terminal or a suitable chassis point.
Red Wire:
Power. Switch to +12/24V to operate the flash-
er. Must be powered through the fuse, located
as close to the battery terminal as possible.
Flash pattern set. Apply +12/24V momentarily
Yellow Wire:
(< 1 sec) to cycle through the available flash
patterns (see table below). Holding power on
this wire for > 1 sec will select the previous pat-
tern.
Sync wire. Connect to other blue sync wires of
Blue Wire:
other 3730 LED heads to allow synchronizing of
flash patterns (see notes). Connecting the sync
wires together does not alter the flash patterns
in any of the LED heads – it only controls the
relative timing of the flash patterns (see notes
on page 4). This wire may also be connected to
other compatible ECCO synchronizing products.
If unused, leave unconnected and insulated.
Flash Patterns
The 3730 series LED heads can be configured to flash the
following patterns (in the order below) by momentarily applying
power to the yellow wire as described in the wiring section. The
LED head must be powered through the green and red wires to
allow pattern selection.
Flash pattern
No.
Style
1.
Steady
2.
Single
3.
Single
4.
Single
5.
Single
6.
Double
7.
Double
8.
Triple
9.
Triple
10.
Quad
11.
Quad
12.
Quint Hold
13.
Quint Hold
14.
Fast Double
15.
Fast Double
16.
Pulse
17.
Pulse8
18.
Pulse8
19.
Alternating Double
20.
Alternating Double
21.
Alternating Quad
22.
Alternating Quad
23.
Alternating Fast Double
24.
Alternating Fast Double
25.
Random
Flash rate
Phase
N/A
N/A
A
60 FPM
B
A
120 FPM
B
A
B
A
B
75 FPM
A
B
A
B
A
132 FPM
B
N/A
N/A
A
B
A
75 FPM
B
A
B
A
142 FPM
B
N/A
N/A
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